https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=252109
Bug ID: 252109
Summary: With ASLR enabled ulimit -s is crashing
Product: Base System
Version: 12.2-STABLE
Hardware: amd64
OS: Any
Status: New
Severity: Affects Many People
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
Created attachment 220893
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=220893&action=edit
coredump from ulimit
Summary
When trying to set a stack size using ulimit -s while kern.elf*.aslr.enable=1
causes segmentation fault:
System:
OS: 12.2-RELEASE-p1
ARCH: AMD64
Notes: Running on Proxmox VM
Steps to reproduce:
root@abyss:~ # sysctl kern.elf64.aslr.enable=1
kern.elf64.aslr.enable: 1 -> 1
root@abyss:~ # sysctl kern.elf64.aslr.enable=0
kern.elf64.aslr.enable: 1 -> 0
root@abyss:~ # ulimit -s 3000
root@abyss:~ # ulimit -s 3000
root@abyss:~ # ulimit -s 3000
root@abyss:~ # ulimit -s 3000
root@abyss:~ # ulimit -s 3000
root@abyss:~ # sysctl kern.elf64.aslr.enable=1
kern.elf64.aslr.enable: 0 -> 1
root@abyss:~ # ulimit -s 3000
Segmentation fault (core dumped)
root@abyss:~ #
Workaround:
Disable ASLR sysctl kern.elf64.aslr.enable=0
Attached coredump from ulimit.
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